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    METHOD AND ARRANGEMENT FOR MONITORING THE COOLING OF A WELDED JOINT
    41.
    发明申请
    METHOD AND ARRANGEMENT FOR MONITORING THE COOLING OF A WELDED JOINT 审中-公开
    用于监测焊接接头冷却的方法和装置

    公开(公告)号：WO2013089634A1

    公开(公告)日：2013-06-20

    申请号：PCT/SE2012/051401

    申请日：2012-12-14

    申请人： TSC INNOVATION AB

    发明人： LIDSTRÖM, Kjell

    IPC分类号： F16L47/02 ,  B29C65/34 ,  G01K1/14

    CPC分类号： F16L47/03 ,  B29C65/344 ,  B29C65/3448 ,  B29C65/3468 ,  B29C65/3476 ,  B29C65/7841 ,  B29C66/0342 ,  B29C66/1122 ,  B29C66/30341 ,  B29C66/3494 ,  B29C66/53241 ,  B29C66/5326 ,  B29C66/71 ,  B29C66/72321 ,  B29C66/727 ,  B29C66/81471 ,  B29C66/81875 ,  B29C66/8286 ,  B29C66/8748 ,  B29C66/91213 ,  B29C66/91214 ,  B29C66/91221 ,  B29C66/91231 ,  B29C66/91313 ,  B29C66/91315 ,  B29C66/91317 ,  B29C66/91411 ,  B29C66/91655 ,  B29C66/961 ,  B29L2023/225 ,  B29K2023/06 ,  B29K2023/065

    摘要： The present invention concerns a method to monitor the cooling process in a welded joint during the welding of pipes (1) of a weldable polymer material, where the welding process comprises that a muff (7) of a weldable polymer material is placed with overlap over the end of the pipe, and that an electrically conducting tape (9) is placed between the pipe and the muff, that the muff is held in place by welding equipment (19) that makes contact with the muff, and that the muff is welded to the pipe through an electrical current being supplied in order to heat the tape and the surrounding polymer material in order to form a welded joint, where a measurement process is carried out after the welding process has ended comprising that a current pulse Ip is supplied to the tape from an indicator unit (40), a resulting temperature-dependent parameter Sp in the tape is determined by the indicator unit, the value of Sp is stored in the indicator unit, that a further current pulse Ip is supplied to the tape from the indicator unit after a predetermined time interval, and that the parameter Sp in the tape is determined and the value of Sp is stored in the indicator unit, the indicator unit monitors and evaluates the value of the parameter Sp or the relative change in the value of the parameter Sp, the measurement process is repeated until Sp reaches a plateau value or the relative change in Sp reaches a predetermined level, a signal arrangement signals that the welding equipment can be removed from the area of the weld when the indicator unit (40) indicates that the cooling process has ended. The invention concerns also an arrangement for monitoring the cooling process during the welding of pipes of a weldable polymer material.

    摘要翻译： 本发明涉及一种在焊接可焊接聚合物材料的管道（1）期间监测焊接接头中的冷却过程的方法，其中焊接过程包括将可焊接聚合物材料的套管（7）重叠放置 管道的端部，并且导电带（9）被放置在管和套管之间，通过与套筒接触的焊接设备（19）将套管保持在适当的位置，并且套筒被焊接 通过供给的电流向管道供电以加热带和周围的聚合物材料，以便形成焊接接头，其中在焊接过程结束后进行测量处理，包括电流脉冲Ip被提供给 来自指示器单元（40）的磁带，磁带中产生的温度相关参数Sp由指示器单元确定，Sp的值被存储在指示器单元中，提供另外的电流脉冲Ip t o在预定时间间隔之后的指示器单元的磁带上，并且确定磁带中的参数Sp并且将Sp的值存储在指示器单元中，指示器单元监视并评估参数Sp或相对值 改变参数Sp的值，重复测量过程，直到Sp达到平稳值或Sp的相对变化达到预定水平，信号布置信号表明焊接设备可以从焊接区域移除 指示器单元（40）表示冷却过程已经结束。 本发明还涉及一种在焊接可焊接聚合物材料的管道期间监测冷却过程的装置。